263946 has 8 divisors (see below), whose sum is σ = 527904. Its totient is φ = 87980.

The previous prime is 263941. The next prime is 263951. The reversal of 263946 is 649362.

It is an interprime number because it is at equal distance from previous prime (263941) and next prime (263951).

It is a sphenic number, since it is the product of 3 distinct primes.

263946 is an admirable number.

It is a d-powerful number, because it can be written as 2⁷ + 6³ + 9² + 3⁴ + 4⁹ + 6⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263941) by changing a digit.

263946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21990 + ... + 22001.

It is an arithmetic number, because the mean of its divisors is an integer number (65988).

2²⁶³⁹⁴⁶ is an apocalyptic number.

263946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263946 is a wasteful number, since it uses less digits than its factorization.

263946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43996.

The product of its digits is 7776, while the sum is 30.

The square root of 263946 is about 513.7567517805. The cubic root of 263946 is about 64.1463123912.

The spelling of 263946 in words is "two hundred sixty-three thousand, nine hundred forty-six".